Blender => Unity Export, UV Coloring
Problem was Solved,
The .fbx file was all fine
In Unity I Created a new Material and Dragged my Texture file,
from the UV Editing onto the Albedo of the Material.
After That the Colors will be wrong, so you need to change some settings of the Texture.
Compression =&gt; None,
Filter Mode =&gt; Point(No Filter)